List of the card relation's information.

Field : ObjectDescription
cards: [Card] Lookup the connected cards by their identifier.
name: String Represents the chosen name of the relation.
pipe: Pipe Lookup the connected pipe by its identifier.
repo: RepoTypes Lookup the connected Pipe or Table.
source_type: String Represents if the connection is through a PipeRelation or a Connection Field. The possible values are: - PipeRelation - Field